Blast-furnace.



SAMUEL K. HINE AND wILLiAM a. PHIBBS, or GIRARD, OHIO.

BLAST-FURNACE eraser.

Specificationof Letters Patent Patented March 16 1 90 9.

Application filed June 2a, 1908. Serial No. stain.

' all whom it may concern:

me rennin: Purses, residing at Girard, in e county of Trumbull and Stateof Ohio, invented a certain new and useful l1novenient inBlast-Furnaces, of which the lowing is a full, clear, and exact descrip--am, reference being had to the accompanyin charging blast furnacesthere has been iderable difiiculty in properly distribut- I g the chargein the furnace, due to the fact when the bell is lowered, the materiallng outwardly gradually cuts away the of the furnace and thus makes aragged e on which material lodges.

an object of the present invention is to rovide simple and effectivemeans to preent this interference with the distribution. end we haveprovided a metal shield a1 ound the interior of the furnace at, andextending below,the stock line and adapted to receive the impact of theoutwardly sliding load when the bell is lowered. This shieldis made insegmental sections and is set into the furnace wall so that its innersurface is flush with the inner surface of the wall. We provide means tosecurely hold the shield in place. In order that the shield may not burnout we may arrange cooling pipes within it., Our invention comprises theshield above described, with or without the cooling pipes.

it also includes the more particular enibodiinentshown in the drawingand hereinafter-more fully described; I

I the drawing, Figure 1 is a vertical central section through the upperportion of a blast furnace; Fig. 2 isa partial horizontal sectionthrough the same; Fig. 3 is a perspec tiv'e view'of one'segment of theshield partially broken away.

Referring to the parts by reference letters,

' ilmrepresents the brick work of the furnace,

wall and B the surrounding jacket. is the upper portion of the hopperand C the hop- T D represents the bell. These parts may be of anysuitable construction, it sing understood that to charge the furnace perproper.

' the bell is lowered to allow the load resting on 'it'ahd on thehopper- O to slide'd'ownwardly and. outwardly on the bell surface,

In the interior of the furnace in position to receive the charge whenthe bell is lowered is located our shield, comprising a series of fse gnents These segments abut each it known that we, SAMUEL K. Hirinand ipe Jsurrounding the furnace near the other at their edges to make 'acompletesleeve within the furnace. The wall is recessed, as indicated bya, sufficiently to receive the segments, so that their inner surface isflush with the inner surface of the wall. The segments may be providednear their upper edges at their outer sides with lugse, which are boltedto brackets F set into the brick work. The outer face of these bracketsmay-be riveted to the jacket B, as illustrated With this construction,it will be seen that the shield is very securely held in place. At thesame time, its interior pro-'- .vides a smooth surface on which thecharge satisfactory operation to the furnace, as well as to increase thelife thereof, doing away with the repairrequired where the chargeconstantly breaks away the brick wall;

In order to prevent the heat of the furnace from gradually burning outour shield, we may, if desired, water cool thesame. This we accomplishby embedding in each segso ment, which is preferably a steel casting, acoil or convolution of water, pipe. lSuch .pipe, which is shown hereindesignated H, is

preferably continuous throughout each segment, passing back and forthinsubstan" tially parallel reaches, as shown.- It is to be understood thatthewater entersatone edge of the segment and, after circulating throu hit asses out through theexit pipe near t e otder edge, the entranceandexit pipes passing through the wall of the'furnace to the outside wherethey-may be connected with the supply in any suitable manner. As shown,for example, there is a main entrance ower ends of the shield and e'an'ain exit pipe J surrounding it'near the upper ends Other means ofconveying water to and from the shield maybe employed, as desired.

7 Having thus desciib d our invention, we claim: 1. In ablast furnace,thecombination of a wall,a shell surrounding the Wall, a metal shieldadjacent. to the interior surface of the wall nearthe upper partthereof, and means for en porting the shieldfrom the shell.

2. 1% a blast fdrnacathecombination of a wall, a shell u on theexterior. thereof, a metal shield a jacent to the wall near the upperpartthereof and in the interior of the =11) furnace, and bracketssecured to the shell -Wall, a shell surrounding and engaging the shieldto support the same.

3. In a blast furnace, the combination of a the Wall, a metal shield adj&cent to the Wall near the top thereof and in. the interior of thefurnace, brackets secured to the shell and extending through recesses inthe wall of the furnace,

being segmental, brackets secured to the outer shell and extendingthrough the'wall of the furnace, the brackets being secured at theirinner ends to adjacent segments of the shield at their points ofabutment, whereby the shield is supported.

In testimony whereof, We hereunto affix our signatures in the presenceof two Witthe said. brackets at their inner ends being nesses. securedto the shield to support the same. SAMUEL K; HIN E. I

",4. In a blast furnace, the combination of a WILLIAM R. PHIBBS. wall, ashell surrounding the Well, a metal Vitnesses:

shield set into the Wall near the top thereof and in the interior of thefurnace, said shield THos. PRITCHARD, KIRTLAN'D M. FIToH:

